The three main reasons behind the QuickBooks Error 6190 are outdated QuickBooks software, the difference in the format of the company file & the transaction log file and operating the company file by various users in the single-user mode. Although accessing QuickBooks and authorizing the change from single-user to multi-user mode can resolve the error, this does not work every time. We have curated a blog of fruitful solutions to help you get rid of Error 6190. Read here or contact the experts at 1-855-856-0042.